Same vertical spacing for chapter and chapter*

Question

I use \chapter*{} in the \frontmatter and \chapter{} in the \mainmatter.

I use titlesec and the styling of the chapter headings is this:

\documentclass[10pt,a4paper,openany,oneside]{book}
...
\usepackage{titlesec}
\newcommand*{\justifyheading}{\raggedleft}

\titleformat{\chapter}[display]
  {\normalfont\huge\bfseries\justifyheading}
  {\filleft\Large\textsc{\chaptertitlename}~\Huge\thechapter}
  {1ex}
  {\titlerule\vspace{0ex}\filleft}

Question: How do I get the chapter title to be at the same level? See the problem in this screenshot, I want the titlerules to be at the same level (i.e. same distance from the top).

Bonus-question: How do I push the "Chapter 1" to the right so the number is hanging outside the margin?

Answer 1

One possibility is to have two definitions: one for numbered chapters and the other one, for unnumbered chapters, using the numberless key. In the definition for unnumbered chapters, some \phantoms are used to hide the chapter name and the chapter number; for the bonus question, a \rlap will do the job:

\documentclass{book}
\usepackage[a5paper]{geometry}% just for the example
\usepackage{titlesec}

\newcommand*{\justifyheading}{\raggedleft}

\titleformat{\chapter}[display]
  {\normalfont\huge\bfseries\justifyheading}
  {\filleft\Large\textsc{\chaptertitlename}\rlap{~\Huge\thechapter}}
  {1ex}
  {\titlerule\filleft}
\titleformat{name=\chapter,numberless}[display]
  {\normalfont\huge\bfseries\justifyheading}
  {\filleft\Large\textsc{\phantom{\chaptertitlename}}\rlap{~\Huge\phantom{\thechapter}}}
  {1ex}
  {\titlerule\filleft}

\begin{document}

\chapter{Test Numbered Chapter}
\chapter*{Test Unnumbered Chapter}

\end{document}

With your current settings, you need to use a font allowing you bold-faced small caps, although I would suggest you to have only small caps (not boldfaced).

As barbara beeton has suggested, your current settings will result in the title being too close to the rule; adding some spacing would produce a better result:

\documentclass{book}
\usepackage[a5paper]{geometry}% just for the example
\usepackage{titlesec}

\newcommand*{\justifyheading}{\raggedleft}

\titleformat{\chapter}[display]
  {\normalfont\huge\bfseries\justifyheading}
  {\filleft\Large\textsc{\chaptertitlename}\rlap{~\Huge\thechapter}}
  {1ex}
  {\titlerule\vskip1ex\filleft}
\titleformat{name=\chapter,numberless}[display]
  {\normalfont\huge\bfseries\justifyheading}
  {\filleft\Large\textsc{\phantom{\chaptertitlename}}\rlap{~\Huge\phantom{\thechapter}}}
  {1ex}
  {\titlerule\vskip1ex\filleft}

\begin{document}

\chapter{Test Numbered Chapter}
\chapter*{Test Unnumbered Chapter}

\end{document}